Composition levy intimation requires submission of CMP-03 with supplier-wise stock and tax component details upon migration. Form CMP-03 requires migrating taxpayers to disclose GSTIN, legal and trade names, principal place of business, application reference and filing date for opting into the composition scheme, and jurisdiction. It mandates supplier-wise schedules of closing stock on the migration date distinguishing purchases from registered and unregistered persons with invoice particulars and separate columns for VAT, Central Excise and Service Tax components, aggregate totals, a tax paid table with central and state/UT columns and debit entry references, and a verification declaration by the authorised signatory.